thanks, that really interesting information, i did look stuff up but i didnt look in detail. From that information I think I have three females. And there is definatly a dominate one, and it seems to be Emily the one making the noises, but i thought females would be okay to be together. I will have to reconsider housing them. To be honest I cleaned them out a few week ago and there was red stuff in a corner, wasnt sure what it were but I cheaked the mice and they all seemed fine.
Thankyou!